JP2005320498A - 誘電体形成用組成物、キャパシタ層並びに印刷回路基板 - Google Patents
誘電体形成用組成物、キャパシタ層並びに印刷回路基板 Download PDFInfo
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Abstract
【解決手段】
本発明の誘電体形成用組成物は、熱可塑性樹脂、あるいは熱硬化性樹脂40〜99vol%と、半導性充填剤1〜60vol%とを含むものであり、特に、半導性充填剤は、表面に絶縁層が形成されてなることが好ましい。また、本発明の誘電体形成用組成物は、熱可塑性樹脂、あるいは熱硬化性樹脂40〜95vol%と、半導性化強誘電体5〜60vol%とを含むものである。本発明のキャパシタ層は、上記誘電体形成用組成物から形成されたものであり、本発明の印刷回路基板は、上記キャパシタ層を含むものである。
【選択図】
なし
Description
一定あるいは減少する。
図1は、実施例1において製造されたキャパシタ層の誘電特性を示す図である。本実施例においては、図1に示したように、充填剤として強誘電体(BaTiO3)、金属粉末(Gu、Ni)または半導性充填剤(ZnO)と、ビスフェノールAとを用いて誘電体スラリーを製造し、スラリーで高誘電率複合材料の硬化体としてキャパシタ層を作製し、添加剤の変化に応じる誘電特性を評価した。
(1)BaTiO3
(2)真空雰囲気において1100℃まで5℃/minで温度を上昇させた後、1100℃において1時間かけて熱処理し、半導性化させたBaTiO3
(3)CaOを液相で2mol%ドープした後、真空雰囲気において1100℃まで5℃/minで温度を上昇させ、1100℃において1時間かけて熱処理し、半導性化させたBaTiO3
(4)CaOを固相で2mol%ドープした後、酸化雰囲気において1100℃まで5℃/minで温度を上昇させ、1100℃において1時間かけて熱処理した後、真空雰囲気において1100℃まで5℃/minで温度を上昇させ、1100℃において1時間かけて熱処理し、半導性化させたBaTiO3
(5)CaOを液相で2mol%ドープした後、酸化雰囲気において790℃で1時間かけて1次処理した後、真空雰囲気において1100℃まで5℃/minで温度を上昇させ、1100℃において1時間かけて熱処理し、半導性化したBaTiO3
(6)CaOを液相で2mol%ドープした後、酸化雰囲気において1100℃まで5℃/minで温度を上昇させ1100℃において1時間にかけて熱処理した後、真空雰囲気において1100℃まで5℃/minで温度を上昇させ、1100℃において1時間かけて熱処理し、半導性化させたBaTiO3
(7)Cu粉末
(8)金属粉末の総体積に対して、体積比が90vol%になるようにBTをドープし、酸化雰囲気において1100℃まで5℃/minで温度を上昇させ、1100℃において1時間かけて熱処理したCu粉末
(9)金属粉末の総体積に対して、体積比が90vol%になるようにBTをドープし、酸化雰囲気において1100℃まで5℃/minで温度を上昇させ、1100℃において1時間かけて熱処理したNi粉末
(10)ZnO 2.5vol%とBCT 17.5vol%
(11)ZnO 5.0vol%とBCT 15.0vol%
(12)ZnO 7.5vol%とBCT 12.5vol%
(13)ZnO 10.0vol%とBCT 10.0vol%
(14)酸化雰囲気において1100℃まで5℃/minで温度を上昇させ、1100℃において1時間かけて熱処理し、表面酸化絶縁層を形成したZnO粉末
図2は、実施例2において製造されたキャパシタ層の誘電特性を示す図である。本実施例において半導性化した強誘電体材料AおよびBを平均粒径が約1μmになるように粉砕し、44vol%で樹脂と配合したことを除けば、実施例1と同一な方法によりスラリーおよびキャパシタ層を製造して、誘電率および誘電損失を測定し、その結果を図2に示した。
Claims (20)
- 熱可塑性樹脂、あるいは熱硬化性樹脂40〜99vol%と、
半導性充填剤1〜60vol%と
を含むことを特徴とする誘電体形成用組成物。 - 前記半導性充填剤は、非化学量論的化合物であることを特徴とする請求項1に記載の誘電体形成用組成物。
- 前記半導性充填剤は、ZnOであることを特徴とする請求項1または請求項2に記載の誘電体形成用組成物。
- 前記熱硬化性樹脂は、エポキシ樹脂、フェノール樹脂、ポリイミド樹脂、メラミン樹脂、シアネート樹脂、ビスマレイミド樹脂またはこれらのジアミン付加重合物を、単独で、あるいは混合して使用されてなることを特徴とする請求項1〜3のいずれか一つに記載の誘電体形成用組成物。
- 前記熱可塑性樹脂は、フェノキシ樹脂またはポリエーテルスルホン樹脂を、単独で、あるいは混合して使用されてなることを特徴とする請求項1〜4のいずれか一つに記載の誘電体形成用組成物。
- 前記半導性充填剤は、表面に絶縁層が形成されてなることを特徴とする請求項1〜5のいずれか一つに記載の誘電体形成用組成物。
- 前記絶縁層は、半導性充填剤を酸化雰囲気下において、700〜1300℃で30分〜10時間熱処理して形成してなることを特徴とする請求項6に記載の誘電体形成用組成物。
- 前記絶縁層は、半導性充填剤にBaTiO3またはPb系強誘電性物質を液相コーティングした後、酸化雰囲気下において、700〜1300℃で30分〜10時間熱処理して形成してなることを特徴とする請求項6に記載の誘電体形成用組成物。
- 熱可塑性樹脂、あるいは熱硬化性樹脂40〜95vol%と、
絶縁層が形成された半導性充填剤5〜60vol%と
を含むことを特徴とする請求項6に記載の誘電体形成用組成物。 - BaTiO3、PbTiO3、PMN−PT、SrTiO3、CaTiO3およびMgTiO3から成る群から選択された少なくとも一種類の強誘電性充填剤を、誘電体形成用組成物の総体積の59vol%以下となる態様で含むことを特徴とする請求項1〜9のいずれか一つに記載の誘電体形成用組成物。
- 前記半導性充填剤および絶縁層が形成された半導性充填剤は、平均粒径が0.01〜50μmであることを特徴とする請求項6〜10のいずれか一つに記載の誘電体形成用組成物。
- 熱可塑性樹脂、あるいは熱硬化性樹脂40〜95vol%と、
半導性化強誘電体5〜60vol%と
を含むことを特徴とする誘電体形成用組成物。 - 前記半導性化強誘電体は、強誘電体を真空雰囲気、酸化雰囲気または還元雰囲気において、800〜1300℃で30分〜10時間熱処理して得たものであることを特徴とする請求項12に記載の誘電体形成用組成物。
- 前記半導性化強誘電体は、強誘電体に、該強誘電体1mol当たりMn、Mg、Sr、Ca、Y、Nbの2+、3+、5+酸化物、Ce、Dy、Ho、Yb、Ndランタン系元素の酸化物から成る群から選択された少なくとも一種のドープ添加剤を0.01mol%〜5mol%添加した後、真空雰囲気、酸化雰囲気または還元雰囲気において、800〜1300℃で30分〜10時間熱処理して得たものであることを特徴とする請求項12に記載の誘電体形成用組成物。
- 前記強誘電体は、BaTiO3、PbTiO3、PMN−PT、SrTiO3、CaTiO3およびMgTiO3から成る群から選択されたものであることを特徴とする請求項13または請求項14に記載の誘電体形成用組成物。
- 前記半導性化強誘電体は、平均粒径が0.01〜50μmであることを特徴とする請求項12〜15のいずれか一つに記載の誘電体形成用組成物。
- 前記熱硬化性樹脂は、エポキシ樹脂、フェノール樹脂、ポリイミド樹脂、メラミン樹脂、シアネート樹脂、ビスマレイミド樹脂またはこれらのジアミン付加重合物を、単独で、あるいは混合して使用されてなることを特徴とする請求項12〜16のいずれか一つに記載の誘電体形成用組成物。
- 前記熱可塑性樹脂は、フェノキシ樹脂またはポリエーテルスルホン樹脂を、単独で、あるいは混合して使用されてなることを特徴とする請求項12〜17のいずれか一つに記載の誘電体形成用組成物。
- 請求項1〜18のいずれか一つに記載の誘電体形成用組成物から形成されたことを特徴とするキャパシタ層。
- 請求項19に記載のキャパシタ層を含むことを特徴とする印刷回路基板。
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US (1) | US7531112B2 (ja) |
JP (1) | JP4171725B2 (ja) |
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CN (2) | CN101325128A (ja) |
Cited By (3)
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JP2006077193A (ja) * | 2004-09-13 | 2006-03-23 | Sumitomo Chemical Co Ltd | ポリエーテルスルホン樹脂組成物およびそのフィルム |
JP2013510429A (ja) * | 2009-11-06 | 2013-03-21 | スリーエム イノベイティブ プロパティズ カンパニー | 非ハロゲン化硬化剤を有する誘電体材料 |
JP2019081665A (ja) * | 2017-10-30 | 2019-05-30 | ヤゲオ コーポレイションYageo Corporation | セラミック焼結体およびそれを含む受動素子 |
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- 2004-05-04 KR KR1020040031374A patent/KR100586963B1/ko not_active IP Right Cessation
- 2004-06-25 US US10/875,323 patent/US7531112B2/en not_active Expired - Fee Related
- 2004-06-30 CN CNA2008101255411A patent/CN101325128A/zh active Pending
- 2004-06-30 CN CNB2004100619893A patent/CN100538936C/zh not_active Expired - Fee Related
- 2004-09-15 JP JP2004268894A patent/JP4171725B2/ja not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006077193A (ja) * | 2004-09-13 | 2006-03-23 | Sumitomo Chemical Co Ltd | ポリエーテルスルホン樹脂組成物およびそのフィルム |
JP2013510429A (ja) * | 2009-11-06 | 2013-03-21 | スリーエム イノベイティブ プロパティズ カンパニー | 非ハロゲン化硬化剤を有する誘電体材料 |
JP2019081665A (ja) * | 2017-10-30 | 2019-05-30 | ヤゲオ コーポレイションYageo Corporation | セラミック焼結体およびそれを含む受動素子 |
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Publication number | Publication date |
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CN100538936C (zh) | 2009-09-09 |
US20070027246A1 (en) | 2007-02-01 |
CN101325128A (zh) | 2008-12-17 |
CN1694197A (zh) | 2005-11-09 |
JP4171725B2 (ja) | 2008-10-29 |
US7531112B2 (en) | 2009-05-12 |
KR20050106211A (ko) | 2005-11-09 |
KR100586963B1 (ko) | 2006-06-08 |
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